Use the maps below to answer the following question.

Image of two maps side by side. The map on the left is a map of North America showing different cultural regions. In the south is Mesoamerica. Above Mesoamerica is the Southwest. Along the Pacific Coast is the Pacific Northwest. Beside the Pacific Northwest and in the center of what is now the United States are the Great Plains, Great Basin, and Plateau. On the eastern side of the continent is the Eastern Woodlands. In the north are the Subarctic and the Arctic. The map on the right is a political map of the United States labeling each of the 50 states. Canada is shown to the north, and Mexico to the south.
Public Domain © Maps 101, United States. 2021

According to these maps, the Southwest Native American cultural region was located in the United States and what other North American country?

Mexico
Canada
South America
Caribbean